<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/login.png" alt="" />
      </div>
      <!-- 登录表单区域 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFromRules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.userId"
            prefix-icon="el-icon-user-solid"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.pwd"
            prefix-icon="el-icon-s-goods"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 登录表单的数据绑定对象
      loginForm: {
        userId: "14",
        pwd: "123"
      },
      // 这是表单的验证规则对象
      loginFromRules: {
        // 验证用户名是否合法
        // username: [
        //   { required: true, message: "请输入登录名称", trigger: "blur" },
        //   { min: 3, max: 10, message: "长度在 3 到 10 个字符", trigger: "blur" }
        // ],
        // // 验证密码是否合法
        // password: [
        //   { required: true, message: "请输入登录密码", trigger: "blur" },
        //   { min: 6, max: 15, message: "长度在 6 到 15 个字符", trigger: "blur" }
        // ]
      }
    };
  },
  methods: {
    // 点击重置按钮
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        //表单验证通过valid为true,否则为false
        if (!valid) return;
        // 登录接口
        const { data: res } = await this.$http.post(
          "user/login",
          this.loginForm
        );
        console.log(res);
        if (res.code != 200) return this.$message.error("登录失败！");
        this.$message.success("登录成功！");
        window.sessionStorage.setItem("token", res.data.token);
        // 编程式导航
        this.$router.push("/home");
      });
    }
  }
};
</script>

<style lang="less" scoped>
//scoped只在当前页面有效
.login_container {
  background: linear-gradient(
    to top right,
    #eb7536 0%,
    #d43c33 25%,
    #f6746d 100%
  );
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
